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Montana, Potomac/Seeley Lake Region

Air Quality Alert

Statement as of 9:00 AM MDT on August 22, 2017

Expires 11:00 AM EDT on August 23, 2017


... Air quality alert in effect until 900am MDT Wednesday...

The Montana department of environmental quality has issued an air
quality alert for Granite, Missoula, and Ravalli counties in effect
until further notice due to fire activity in west-central Montana.
Air quality is expected to deteriorate each morning before improving
briefly in the afternoon under stable conditions. The stable
conditions are expected to persist through Wednesday. Smoke from the
Lolo Peak fire is causing very unhealthy to hazardous air quality in
Lolo and Florence and smoke from the Rice Ridge fire is causing
hazardous air quality in Seeley Lake between midnight and noon. The
Missoula city-County health department recommends residents of Seeley
Lake spend as little overnight time as possible in Seeley Lake due to
the dangerous pollution levels. This alert will be updated again at
900am 8/23/2017.

An air quality alert means that particulates have been trending
upwards and that an exceedence of the 24 hour National ambient air
quality Standard (naaqs) has occurred or may occur in the near
future.

As of 900am, particulate levels in Lolo and Seeley Lake are hazardous

As of 900am, particulate levels in Florence are very unhealthy

As of 900am, particulate levels in Arlee are unhealthy

As of 900am, particulate levels in Missoula and Philipsburg are
unhealthy for sensitive groups

As of 900am, particulate levels in Clearwater, Condon, frencthtown,
Hamilton, and Rainy Lake are moderate

When air quality is hazardous... state and local health officials
recommend that everyone should avoid any outdoor exertion; people
with respiratory or heart disease, the elderly, and children should
remain indoors.

When air quality is very unhealthy... state and local health
officials recommend that people with respiratory or heart disease,
the elderly, and children should avoid any outdoor activity; everyone
else should avoid prolonged exertion.

When air quality is unhealthy... state and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is unhealthy for sensitive groups... state and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is moderate... state and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana department of environmental
quality at www.Todaysair.Mt.Gov




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